Vehicle-tire.



J. T. CLARK.

VEHICLE TIRE.

APPLICATION FILED NOV. 29, 1912.

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J. T. CLARK.

VEHICLE TIRE.

ArPLIoATIoNHLBDNomzQ.1912.

Patented sept. so, 1913.

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To cll'whomit may-concern.' v Beit known that I, J om( 'T CLARK, a citi# `en of the United -Sta'tes,residin at Provo fol owing is a. specification.

My invention relates to vehicle tires .and -has for its object to provide a resllient vehicle tire in which a spring effect is given to a wheel without the pneumatic rinc1ple bel in'g used, and to provide 'a vehic e tire which l section on line y may :be used on a majority of automobile Wheels now constructed with but slight changes in the casin tension means whereby resiliency is secure in the tire by mechanical'nieans. I

The invention consists of the novel construction and combination of parts hereinafter described and illust-rated in the accom` panying drawingsforming a part ofthis application in which drawings similar letters' of 'reference indicate like parts throughout the several figures, it being understood that slight change in the manner of tensioning the casing member may be resorted to within the scope of the claims without departing from the spirit of the invention or sacrificin any of its principles.

n the drawings, lgure 1 is a radial cross of Fig. 3 with the casing but slightly tensioned. Fig. 2 is a radial cross section on line z e of Fig. 3 with the outer casing tensioned. Fig. 3 is a fragmentary view of the tire in section on line of Fig. 1. Fig. 4 is .a fragmentary view in eleva-tion of the guide cases lookin outward from the axis also shown in dotted lines when not drawn together. Fig. 5 `is a section of one of the same `online t t of Fig. 4. Fig. 6 is a side elevation of one of the annular gripping hands. Fig.y 7 isa radial cross section similar to Fig. 1 showinga modified formof construction used in the annular grippingbands. Fig. 8 is a radial cross section 'similar to Fig., 2'showingqa modified form of the annular gripping :paridad f frmiraten. mannen mea november. se, i912; `serial No. 734,203.

Patented'sept. 3o, 1913.

annular periphery is concentrically laced a Guard band 18 made of leather or ot er flex-- ible; material. Concentrically within and adjacent the inner peripheryof said guard .band is placed the endless spring band 3.

The edges of said band are rounded to prevent injury to said guard band 18, and said spring band 3 is covered with rubberized flexible material 5. Within said spring vband 3, and concentrically spaced therefrom is an inner lloating band 9 having each edge thereof flanged o-ntwardly. The purpose of said flanges isto support the sides of said casing 1 on the inside against lateral movement when the wheels tend vto skid as in turning a street corner rapidly; also to aid the said spring band 3 when lsubjected to sudden strain or extra pres.- sure. Two annular gripping bands 11 are provided Within said floating band 9, and adjacent thereto. Each of said gripping bands 11 has a flange 15 thereon to engage said clamping lug 2 on the casing 1. gripping bands 1l are each inclosed within an annular guide case 6, which has holes provided in the vertical portion theeof and each has an inwardly extended flange 7 on the outer periphery thereof to engage in a shoulder 8, which is cut in said gripping band 11, adjacent. Said holes provided in said guide cases are in line with holes provided in said gripping bands 11, and said guide cases and gripping bands are held in plaoe,1and said gripping bands in contact with said casing 1 by the threaded tap bolts 12. Said holes arefprovided and said bolts are inserted from alternate sides in order that the stress of said lbolts will be distributed evenly, and when said bolts are Said turned within the threaded tapped openings l in said gripping bands 11, said gripping bands 11 will be drawn toward each other, and thereby lthe said casingl 1 will be tensioned over said bands 3 and 9.

Where the pneumatic principle is used the tension on the outer tire is determined and regulated by the inflation ofthe inner tube andv the pressure is outward. `In my tire the tension of the outer casing 1 is determined and regulated by bolts 12 and the pressure is radially inward on the band 3 and radially outward on the band 9. The

outer casing 1 is determined by the strength of the material in said casing andthe in- `extreme tension that may be given to the the outward or tensile strength of the band 9. The resiliency of'my tire is determined by the tensile stress on the outer casing 1.

A modified forni of construct-ing the gripping bands is shown in Figs .7, 8 and 9, wherein the said bands are niade up of segments 10. Said segments are placed in said guide eases (3 and securely he d therein by said bolts 12 being inserted through the holes in the vertical poi'tions of said guide cases and through the openings in the contiguous ends of two of said segments and screwed into the alined hole of a segment ot' the other of said bands. ln the inodilied forni the said bands when the segments are in place, form'gripping bands similar in form and used in the saine place as said gripping bands 11. Said segments of one band are placed in staggerei'l relation eireuint'erentially to the segments comprising the. other band. Each of said segments 10 has the shoulder 8 similar to that when said gripping bands are made iu one piece, and the cutting of said gripping bands into segments is to prevent undue strain on one of said boltsl), or on one portion of said gripping bands 1l. The openings 1?, which are eut in the inner periphery of said guide cases 6 are to enable the workman to see the position of the gripping hands 1l to guide hini in securing an even tension on every .portion of said outer easing 1 when tightening the bolts l2.

Having thus described my invention I desire to secure by Letters Patent and claim 1. A vehicle tire consisting of two Hoating concentric bands; a iexible tubular easing having a bead near each edge thereof and inclosing said bands and tending to drawthe outer of said'bands radially inward and the inner of saidi`bands radially outward; a guide case consisting of two opposed annular metal members .L-shaped in cross section; opposed laterally-movable annular bands adapted to engage said beads, each having threaded and Unthreaded openings transversely therethrough; v threaded bolts ea'ch adapted to engage one of vsaid L- shaped metal members with the head of the bolt and the annular band in the other L- shaped member by means of 'the threads to move said last mentioned annular band laterally in said guide case to tension said tubular easing transversely and to hold said guide case, annular bands,'tloating bands, and tubular easing in fixed relationwith each otliei.

2. A vehicle tire consisting of two loat- -iig bands of different diameters; a flexible tubular casing having a bead neareach edge and inelosing said bands tohold them concentric; an annular guide case concenti'ically within said tubular casing and consisting of two opposed members L-shaped in cross section; opposed annular bands adapted to engage said-beads and operable iii said guide case; and means to move said annular bands within said guide case and thereby to tension said casing transversely of the Wheel and hold said guide case, annular bands and floating bands in fixed relation with each other.

In testimony whereof I have aflixed my signature in presence of two witnesses.

JOHN T. CLARK. Witnesses:

SAM RANEY, W. R. VILLIAMS. 

